Switch from GFortran "for R" 12.0 to 12.2

I am using the GFortran compiler 12.0 once available from https://mac.r-project.org/tools (old version available on archive.org). This was just a xz archive that was installed using tar fxz gfortran-12.0.1-20220312-is-darwin20-arm64.tar.xz -C /. There is now an update provided as a .pkg file. Does anyone know, if it's safe to uninstall the old version just by

rm -rf /opt/R/arm64/bin/gfortran
rm -rf /opt/R/arm64/gfortran

and then installing the new version by the .pkg file. Unfortunately I haven't found information about updating by the developers.